The Afloat is not only the best waterbed ever made - but the best bed ever made period. I don’t know why anyone would want to sleep on anything else. There are no pressure points and it is like you are sleeping on a cloud. My wife and I have never slept so well in our lives. We wake up happy and refreshed every morning. We went with the XD because we figured the more water, the better. We did not get the memory pad cover, but we have been thinking about adding it. Is it possible for it to be even more comfortable? I don’t know, because it’s perfect now. Praise to the developers of this bed, it is truly a masterpiece. We are incredibly blessed and grateful to own it. It is the absolute best (and most important) piece of furniture we own.